End stapling machine



- A. L.. ROSENMUND 23399193@ END STAPLING MACHINE' web 393 Filed Oct. 5, 1934 9 Sheets-Sheet l A 4/ J9 66 W INVENTOR.

arch L E93., A4 L, RQSENMUND Q END STAFLING MACHINE Filed OCL. 5, 1934 9 Sheets-Sheet 5 IN VEN TO R.

March l, E93., A. 1... ROSENMUND END STPLING- MACHINE 9 Sheets-Sheet 4 Filed Oct. 3, 1934 INVENTOR.

ATTORNEYS. (i5 l VQ/www2 arch LQES. A, L ROSENMUND QQ END STAPLING MACHINE Filed Oct. 3, 1934 f 9 Sheets-Sheet 5 INVENTOR.

ATTORNEYS. @M pg/(AMM March L B93@ A, L. RCEENMUND @,g@

END STAPLING MACHINE Filed Oct, 3, 1934 v 9 Sheets-Sheec 6 INI/ENTOR.

@im M mw .AT ToRNEi/s.

March H9 ww. f A. n.. RCSENMUND .gpwm

END STAFLING MACHINE Filed Oct. 5, 1934 9 Sheets-Sheet 7 I N VEN TOR.

- y#raf-7F60 faam/ma BY 6M] A TTIOR'InVZS. n

Mam 119%., A. 5.,. RQSENMUNEJ END STAPLING MACHINE Filed oct. 5, A19:54 9 sheets-shee-a 8 March l, 1938. y l A L, ROSENMUND 2,109,910

END STAPLING MACHINE Filed 001'.. 3, 193A 9 Sheets-Sheet 9 l/ll* Il am, INVENTOR.

. l y ,af-rfa 4. ,iwf/wma A TTORNEYS.

Patented Mar. l, 1938 UNITED STATI-IS 'PATENT 'KITE END STAPLING aware Application October .3,

17 Claims.

. This invention relates to .stapling machines and particularly to machines for stapling box ends to lthe .box sides.

.It is .an object of the invention to provide ya machine of the character .described which may be economically manufactured and economically operated.

It .is a further object of the invention to provide a machine of the .character described which willoperate-efficientlyzat a high speed.

It is .a .further object `of the invention to pro- .vide a .machine of the rcharacter described which is .adapted to .operate without adjustment on box pants varying in thickness.

It .is a further object of the invention to provide a machine of the `character.described .which .is so constructed and arranged .that its various operating parts may be .readily removed .or .adl.iusted .for pun-poses .of repair .or otherwise.

It is a further object of the invention to provide a box -end .staplingmachine constructed and arranged to form staples within a box and drive .them into the .cleats of a .box `side .and .close .to the b ox side.

.A further yobject of the invention is to .provide a clutch which consists .of few parts, is eco-nomical to manufacture, is durable, is positive in .its action, .and requires comparatively a. small force to operate.

It .is .a further object of the invention to `provide ,a machine of the character described with .staple forming and driving mechanism .adapted .to form staples from staple .stock wir-.e fed .con- .tin-uously thereto and ,to drive the staples .into 35 .the box parts without interrupting the feed -of the .staple stock Wire.

It is .a further object of the .invention to `provide a staple .forming `and driving mechanism adapted to .form one staple while .a previously 4() formed stapleis .being .driven .into .the box parts.

It is a. further .object of the .invention to vpro- `vde means for feeding the staple stock wire to the staple .forming mechanism uniformly with substantially the same direction and degree of curvature.

One illustrative embodiment of -.the invention is shown iin .the accompanying drawings, in which:

Figure ,1 is a side elevation of 4albox `end stapling -machine embodying the invention, said view being taken from .the wire-feed side .of the end stapling machine.

Fig. 2 'is a side elevation of the other lside of 'the machine.

Fig. `3 is an enlarged rear view of the machine.

1an, semi nu. .746,655

Fig. 4 .is an `enlarged vertical .section through the clutch :and .main

Eig is anenlarged rear end view-.ofthestaple stock wire .feeding mechanism.

.Fig'sza diagrammaticside viewlof the same 5 seen from the right in Fig. 5.

Fig. .'1 .is aside .elevation kof the clutch and .the mechanism for operating the same.

Fig. 8 is .a side .elevation .of .the lbrake for the main shaft and -themechanism for operating the 10 same.

Fig. 9 is .an .enlarged View `of .the `clutch .assembly in clutching engagement.

Eig. l0 isa similar View :but sho-wing the parts in non-clutching position.

1.1 .is an .enlarged top plan View ,of the stapling head.

Fig. .12 is a side Aelevation of the stapling head.

Eig. 13 .is a lperspective view of .the `staple forming and driving `elements at the start .of a staple 420 .forming .and driving operation and showing the .driverandformerabout to ascend to drive a completed-stapleand form another staple.

Fig. 14 is a similar view showing the position of the parts upon .completion of a forming and .driving operation.

Fig. 15 is .an enlarged .sectional end view of the .stapling head with .a .box in position thereon, and showing also the clincher for .clamping the box Aon :the .stapling head `during a stapling operation. This view illustrates the form .of the top surface .of the stapling head which permits the .box to be ,positioned thereon in such a manner as .to `receive .the staple .close to the box side.

Fig. 16 .is asimilar view showing the manner in which the clincher cooperates with the boxon the stapling -head .during a staple driving operaltion.

Figs. 157 and 18 are horizontal -.sectional Views of the stapling .arm ,showing the manner in which .the wire is fed .to .thestaple forming and driving mechanism.

Referring .to Figs. 15 and 16, the machine of the application is intended 'to drive a staple A through .a .box end B close to a box side C and into a box cleat D. The box side C and the box cleat .D are secured together on another machine, .usually by .driving staples E through the box side C and into `the cleat D. During this operation binding .wires F are usually secured to the box side C by the staples E. Four of these side sec- 'tionsconnected by the wires F constitute .the four sides of the box when the four sections are folded into four-sided 'box form. To close the ends of the bQX, three of .the side .sections are folded at face of the stapling head, and the side C would take a. vertical position in contact with the side of the stapling head. Such positioning of the box parts necessarily prevented driving the staple close to the box side C and compelled the use of a wide cleat D. In the machine of the present invention the top surface of the stapling head is not flat, but consists of two angular surfaces I and 2, which slant upwardly at an angle to the horizontal and meet to form a ridge 3 along the longitudinal center line of the head through an opening in which the staple is ejected upwardly into the box parts. This arrangement permits the box end and the box side to be positioned on one of the slanting surfaces, as illustrated in Figs. 15 and 16, thus bringing the point at which the staple emerges from the stapling head closer to the side section C and locating the staple closer to the side section C. This arrangement permits the use of narrower cleats D. To drive staples into the cleat on the opposite box side, the box parts are positioned on the other slanting surface.

Heretofore box end stapling machines have been equipped with staple forming and driving mechanism in which the staple stock wire was fed intermittently in the intervals between staple forming and driving operations. In the present machine a staple forming and driving mechanism is provided which is so constructed and arranged as to permit the staple stock wire to be fed continuously to the staple forming and driving mechanism. This construction permits an increase in the speed of operation.

Referring to Figs. 1 and 2, the several operating mechanisms are supported by a base member 4. Secured to the upper part of 'the base member 4 is a frame member 5 having a lower jaw 5a which carries the staple forming and driving mechanism, and an upper jaw 5b which carries the clincher mechanism. Secured to the other side of the base member 4 and in spaced relationship to the frame 5 is a frame 6. The frames 5 and 6 and jaws 5a and 5b serve to support and carry the several mechanisms.

Mounted in bearings in frames 5 and 6 is a main shaft l, from which the several mechanisms are operated. Main shaft 'I is driven through a clutch (hereinafter described in detail) through a pulley and belt 9 from a motor I D conveniently carried in suitable brackets secured to the rear of the base member 4. Any other suitable source of power may be substituted for the motor Ill.

Referring to Fig. 1, the staple forming and driving mechanism is located in the nose of jaw 5a and is operated with a vertically reciprocating motion imparted through a rocking arm H pivoted to a bracket i2 carried by jaw 5a. Arm Il is connected at its outer end to the staple forming and driving mechanism through a pin and slot connection I3 and at its inner end is pivotally connected to a connecting rod I4. Connecting rod I4 is connected at its upper end to a cam plate I5 keyed to shaft I by means of a crank pin I6, the connection being such that upon rotation of the cam plate I5 the arm II is rocked to impart a vertical reciprocating motion to the staple forming and driving elements located in the nose of the jaw 5a.

For operating the clincher mechanism carried by the upper jaw 5b', a clincher arm I1 is pivoted to jaw 5b at I3 and pivotally connected at its outer end to a clincher rod I9 which carries the clincher hereinafter described. To impart a Vertical reciprocating motion to the clincher, the inner end of the clincher arm I1 is pivotally connected to a plate 26 at 23a, which plate 2G carries a roller 2i which rides on the cam plate I5. The upper end of the plate 20 is pivotally connected at 22 to a rod 23 which passes through a bracket 24 secured to the arm I l. A coiled spring 25 is interposed between the bracket 24 and a nut 25 on rod 23 to provide a yielding drive for the arm il to permit the clincher to operate without adjustment on different thicknesses of box parts.

The parts are so arranged that when the rocker arm II is operated to form and drive a staple the clincher arm I7 is operated to clamp the work on the stapling head.

The staple stock wire from which the staples are formed is coiled on a rotatable support 27 icunted on a bracket 28 at the rear of the machine. Referring to Fig. 6, the staple stock wire is drawn from the support 2'! by knurled feed rolls 29 and 3U. Feed roll 30 is eccentrically journaled in a bracket 3l secured to frame member 5 and is spring-pressed toward feed roller 29 by a spring 32. Feed roll 29 is keyed to a shaft 33 i journaled in frame member 5. Also keyed to shaft 33 is a gear 34 which meshes with a gear 35 journaled in a plate 36 bolted to frame member 6. Gear 35 meshes with a gear 37 keyed to main shaft 1.

As the staple stock wire is drawn by the feed rolls 29 and 30 from the support Z'I it is fed through a guide tube 38 to the staple forming and driving mechanism at the nose of the jaw 5b. As shown in Fig. 17, the guide tube 38 is supported by clamps 39 secured to lower jaw 5a. Ihe tube is bent or curved as shown at X to remove previously formed bends in the wire and to cause the wire to emerge from the end of the tube with a definite tendency to feed uniformly in the proper direction to the staple forming mechanism. The outer end of the guide tube 38 is made flexible to permit the tube to flex in response to a flexing influence as shown in Fig. 17, and is also made resilient so that it will return to initial position when the flexing influence is withdrawn as shown in Fig. 18. The flexible and resilient end of guide tube 38 is so adjusted as to feed the wire W to a vertically reciprocating staple former 42 housed in housings 4I and 4Ia, bolted to the nose of the jaw 5a.

As shown in Figs. 13 and 14, the staple former 42 is provided with a cutting edge 43 adapted to cooperate with a xed cutter 44 carried by the housing i-Ia, and sever a length of wire upon the upstroke of the staple former 42. Continued upward movement of the staple former 42 bends the severed wire around a loop bar 46 fixed to housing 4I to form the staple as shown in Fig. 14.

While the former 42 is in the normal path of travel of the wire W, the wire is deflected by a beveled surface 45 of former 42 and is fed to one side of the former 42. The wire continues to be fed `around the former 42 until the former 42 descends below the normal path of travel of the arcas io wire `W, whereupon lthe resilient guide tube 38 returns the wire W -to `,the normal `path above ihe former d2 -(see'Fig. 13).

When the former d2 bends the severed :wire about the 1loop Ibar lili Ato form ga staple, the @legs ofthe `formed staple are -forced in grooves Afl Iof the former 1412 as show-n in Fig. 14. After the staple 'has been `for-med, the former 42 descends as shown in Fig. 13. As YAfor1nerf42 descends, the staple is forced out -of the grooves 1421 by means of a stripper i8 carried lby the housing fdl.

When the ystaple iis stripped from ithe grooves d'l of -the 'former d2 it fis engaged by a spring pressed presser d'9 lwhich is pressed "toward the staple by a spring fida `secured to 'housing -'4=1. Presser di) `pushes the vstaple Aover against the .side of `a Adriver *5l `which is rigidly secured to the -back of -former E2, as-shown in Fig. I3. As the former 42 descends carryingthe driver 5l down with it, the `staple held lby the stripper 48 `remains Lstationary until the driver 5i passes below the staple, whereupon ythe presser lil!! yshifts the staple into the path of the driver V5l as shown inFig. 13, the housing Ma holding the staple `above the top of driver 5i. Thus, upon the neXt upstroke of the former 42 and driver 5I, the driver -will Iengage and drive the -staple `upwardly into the work.

It should be noted that `the staple yformer and driver are connected to yreciprocate together but in different vertical planes and that each `staple after being Aformed by -the staple former is shift-ed from the plane of reciprocation of 'the former yto the plane of reciprocation of thedriver, thus permitting the formation of one staple while another staple is being drivengas best 'shown in Fig. 14. As shown in Fig. Y13, `the upper right corner of `the staple former ld2 carries an extension 52 beveled to guide the wire end ytoward horizontal grooves `53 formed on the'upper -face of the rformer l2 to properly position the Wire for thestaple forming operation. Because Iof 'the 'bend X in guide tube 38, the ywire is uniformly fed with the proper direction and Acurvature Ito 4be engaged by 7the 'beveled surface of the extension 52 and `guided into lthe grooves 53. if for any reason `an insufficient length of wire for astaple is fed, such insuicient vlength of -wire will not reach the extension 52 and thus will not be *moved thereby -into the grooves 53 and no 4staple will be formed. In such case, the severed piece of wire will vdrop- -out of `the machine through lthe recess in the front Aface of 4the former 42 when the Aformer 42 descends.

Referring to Figs. 'l-5 Yand 16, clincl'rer rod 'I9 carries a clincher `515 swiveled to the rod |29 at L55..

This swivel arrangement vfor the Vclincher per- -rnits the clincher to accommodate "itself to vthe slant of the box parts, as shown Vin Fig. 15 thus permitting the use of the slanti-ng ysurfaces I and 2 on the stapler head for `the purpose hereinbefore lreferred to. The surfaces I and 2 are provided with suitable openings at the ridge 3 to permit the staple to be driven therethrough.

The clutch for operating `the main shaft l is `best shown in Figs. 9 and l0. Referring particularly to Fig. 9, the clutch mechanism for connecting pulley 8 Vto main shaft l is shown. A clutch collar 56 is keyed at 56a to lthe main shaft l. Clutch collar '56 is secured to one end of a clutch band 5l. Secured to the other end of the clutch band 5l is -a yblock 59 which bears against the peripheral surface of a collar `lill which is loosely mounted on a hub l(il of the clutch -collar 53. Collar f6!) isconnected to Icol-lar 56 by .a .spring 162 which normally holds `collar in `the .position shown in Fig. .19. lnthis vposition :the kcam-like peripheral surface .of collar 6D acting through the block 59 forces the `clutch band 5`1 -into clutching contact with the pulley i8.

For moving vcollar 60 against the .action Yof spring `$2 `to ,release the pressure on block 59 and break the clutch connection between the .band 51 `and th'e pulley `8, Ya buffer -64 is provided to engage a shoulder ofthe collar 60.

As shown in Fig. 10, when .the .buiier -64 comes in contact with shoulder 65, collar .60 is moved against the .action of spring 62, 'thus moving collar 30 strom the position shown in Fig. v9 to :the position shown in Fig. 10 and permitting the clutch 'band 5l to `move 4vinwardly Vand out of contact .with the pulley 8.

Referring Vto Fig. 2'?, buffer 54 is iixed .to arock shaft 66 journa-led in frame member lii. -Rock shaft 66 is `rocked by a foot pedal 31 through links and connecting rods, as shown. 'The farrangement is such that when -foot fpedal 61 is depressed buffer G4 is lowered out of .engagement with `shoulder .65, lpermitting spring 162 to move collar 60 to the clutching position .shown in Fig. 9. `W hen the pressure on foot pedal '67| 'is released, afspringraises the foot pedal and rocks the shaft 66 ina counter-clockwise .direction to raise the buier 611 intocontact with shoulder 65 and move collar 6B into the non-clutching -position shown in Fig. 10.

It .should be noted `that collar iSill is provided =with one shoulder S65 only so that when buer 4ll `is disengaged from shoulder 65 .the main shaft will 2make at least one complete revolution before .the buffer can again 4engage shoulder 65 Ito dis- Iengage the clutch. The arrangement is such that .one revolution 4of the main shaft causes one complete staple forming' and driving operation. ofcourse, the machine 'will continue .forming and driving .staples as long as the -foot pedal is depressed.

.As shown in Fig. 8, lthe foot pedal 151 operating through links and rods oper-ates a brake 110 on main shaft 7l, .the arrangement being such that when the pui-ley is :clutched to main shaft 'fl the brake Ill] is 4.released and when the driving con- .nection Ibe'tween the .pulley 8 `and the main shaft il is broken the brake 'TB automatically operates to stop rotation of main shaft 1.

u should be noted that because or @am o faction of :the collar 16B on the block :59 very 'little vforce is required in the spring B2 to exert great outward pressure of the clutch band 5l against :pulley 8, and that the clockwise force of l-pulley 8 :against clutch iband 51 tends to expand the Aband 51, lthus increasing the yfriction and Adriving power `and exerting a self-energizing eiiect.

'Referring to Fig. 6, the length of the staple legs formed and driven may be varied by substituting `a different -gear for the -gear 34. To permit the insertion of different sized gears 34, gear 35 is journaled in a plate 36 as herein'before explained, which plate 36 may beyadfusted toward :and from gear 3d through a bolt and slot vconnection l-l, shown in Fig. 6.

"The operation of the machine will be apparent from the Vforegoing detailed description. With the machine at rest, as shown in Fig. 1, the loperato-r positions a'box and box venden slanting surface 2, as shown in Fig. 15, with the box side C contacting with `the upper corner edge of the stapl-ing h'ead in order to locate the ridge 3 of the stapling head through which the staple is driven :as close Vas possible to the box lside C.

With the machine at rest, the staple former and driver are in the position shown in Fig. 13. As there shown, a formed staple (formed during the preceding operation of the machine) is located above the driver 5l ready to be driven upward into the work, and the staple former is below the staple stock wire which has been partially fed across the path of reciprocation of the staple former. With the parts in the position stated, the operator steps on the foot pedal 67 to release the brake 'l0 and disengage buffer $4 from shoulder 65 of the collar 60. Thereupon spring 62 moves collar 60 to force clutch band 57 against pulley 8. This causes one revolution of main shaft l.

During one revolution of main shaft I the previously formed staple which is positioned above the driver is driven upward into the work and another staple is formed and positioned over the driver for the next operation. As the staple former and driver ascend and descend, a sumcient length of wire for one staple is fed through the guide tube 38 to the staple head.

While the staple driver ascends to drive a staple into the work, the sWiveled clincher block 54 descends and engages the box parts, as shown in Fig. 16, to clamp the box parts on the stapling head during the staple driving operation.

In practice the operator actually keeps the foot pedal depressed until he has driven the required number of staples at spaced intervals through the box end B and into the cleat D, shifting the box parts between stapling operations to space the several staples. When the end B has been stapled to the cleat D at one side of the box, the operator shifts the box parts to the other slanting surface on the stapling head and repeats the operation to staple the end B to the opposite cleat D.

The advantages of the machine have been pointed out hereinbefore. The several novel features contribute to a high speed box end stapling machine which may beA economically manufactured and operated, and which permits the driving of staples closer to a box side than in previous known end stapling machines.

It will be understood that the invention is not to be limited to the specific construction shown for purposes of illustration as the invention may be variously embodied.

It will also be understood that all of the inventive features need not be used conjointly as they may be used in various combinations as defined in the subjoined claims.

The word continuously as used in the claims to define the movement or feed of the staple stock Wire is intended to include a feed or movement which continues without interruption during a staple forming and driving cycle of operation as distinguished from a feed or movement which is interrupted during a staple forming and driving operation.

I claim:

1. In an end stapling machine, the combination of a stapling arm and a clincher arm, the stapling arm being adapted to support a box part during a stapling operation and having supporting surfaces each tapering from a side wall of the arm at an angle oblique to the plane of the side wall, and the clincher arm being provided with a clincher adapted to accommodate itself to the tapering supporting surfaces of the stapling arm and to clamp the box on either one of said surfaces.

2. In an end stapling machine, the combination of a stapling arm and a clincher arm, the stapling arm having a supporting surface tapering from a side wall of the arm at anangle oblique vto the plane of the side wall, said supporting surface being adapted to receive thereon and support a box part prior to and during a stapling operation, and said stapling arm being provided with mechanism to drivea staple upwardly into the box part supported on the supporting surface, and the clincher arm being provided with a clincher adapted to accommodate itself to the tapering supporting surface of the stapling arm and to clamp the box part on said surface.

3. In an end stapling machine, a stapling arm carrying staple forming and driving mechanism adapted to operate Within a box and close to the sides thereof to drive a staple upwardly into the work, said stapling arm having a supporting surface tapering from a side Wall of the arm at an angle oblique to the plane of the side wall to receive thereon and support a box part prior to and during a staplingv operation, whereby a box positioned on said tapering supporting surface and in contact with the side wall of the. arm will permit driving a staple in close proximity to the side wall of the box.

4. In an end stapling machine, the combination of a stapling arm adapted to enter a box, staple forming and driving mechanisms carried at the extremity of said arm and operable upon moving wire to form a staple and drive it into box parts, and means to feed staple stock wire continuously and substantially horizontally along said arm to said mechanisms.

5. In an end stapling machine, the combination of staple forming and driving mechanisms operable upon moving wire Within a box to form one staple with its legs upstanding while driving another staple upwardly into box parts, and means to feed staple stock wire continuously to said mechanisms.

6. In an end stapling machine, the combination of staple forming and driving mechanisms operable upon moving wire within a box to form one staple while driving another staple, and means to feed staple stock wire continuously to said mechanisms.

7. In an end stapling machine, the combination of a reciprocating staple former, a staple driver rigidly connected to the rear face of the staple former and extending upwardly above the top of the staple former, means to strip a formed staple from the staple former, means to press the formed staple toward the front face of the staple driver and to shift the staple over the staple driver when the top of the staple driver descends below the staple, whereby on the ascent of the staple former and staple driver, one staple will be formed by the staple former, while the previously formed staple is being driven by the staple driver, and means to feed staple stock wire continuously to said staple forming and driving mechanism.

8. In an end stapling machine, the combination of means to form a staple, means to drive a staple, the staple former and the staple driver being connected and constructed and arranged to drive one staple while another staple is being formed, and means to feed staple stock wire continuously to said staple forming and driving mechanism.

9. In an end stapling machine, the combination of means to form a staple, means to drive a staple, the staple former and the staple driver being rigidly connected to reciprocate together,

and means to feed staple stock wire continuously to said `staple forming and driving mechanism.

10. In an end stapling machine, the combination of means to form a staple, a staple driver associated therewith, means to shift a formed staple from the staple former to the staple driver, and means tofeed staple stock wire continuously to said staple forming and driving mechanism.

11. In an end stap-ling machine, the combination of means to form a staple, a staple driver associated. therewith, means to strip a formed staple from the staple former, means to shift the formed staple to the staple driver, and means to feed staple stock Wire continuously to said staple forming and driving mechanism.

l2. In an end stapling machine, the combination of a reciprocating staple former, a fixed loop bar about which a staple is formed, a reciprocating staple driver, means to shift the formed staple from the fixed loop bar to the path of reciprocation of the staple driver, and means to feed staple stock wire continuously to said staple forming and driving mechanism.

13. A staple forming and driving mechanism comprising, in combination, a reciprocating staple former, a reciprocating staple driver, the staple former and staple driver being constructed and arranged to form one staple while a previously formed staple'is being driven, and means to feed staple stock Wire continuously to said staple forming and driving mechanism.

14. A staple forming and driving mechanism comprising, in combination, a reciprocating staple former, a driver connected thereto and reciprocating therewith, means to shift a formed staple from the path of reciprocation of the staple former to the path of reciprocation of the staple driver, and means to feed staple stock; wire continuously to said staple forming and driving mechanism.

15. A staple forming and driving mechanism comprising, in combination, a stationary loop bar, a movable staple former to vform a staple over the loop bar, means to move the formed staple from the loop bar, a staple driver, and means to feed staple stock wire continuously to said staple forming and driving mechanism.

16. A staple forming and driving mechanism comprising, in combination, a stationary loop bar, a movable staple former to form a staple over the loop bar, means to strip the formed staple from the staple former, means to move the formed staple from the loop bar, a staple driver, and means to feed staple stock wire continuously to said staple forming and driving mechanism.

1'7. A staple forming mechanism comprising, in combination, a stationary loop bar, a reciprocating staple former to form a staple over the loop bar, means to move the formed staple from the loop bar, and means to feed staple stock wire continuously to said staple forming mechanism.

ALFRED L. ROSE'NMUND. 

